Systolic blood pressures are approximately Normal with a mean of 120 and a standard deviation of 8. a. What percentage of people have a systolic blood pressure above 130? b. What is the range of systolic blood pressures for the middle 60% of the population? c. What percentage of people have a systolic blood pressure between 120 and 130? d. Suppose people with systolic blood pressures in the top 15% of the population have their blood pressures monitored more closely by health care professionals. What blood pressure would qualify a person for this additional monitoring?